9
Security
Click the
Setup
button to enter the
Wireless Security Setup
page.
Authentication
: Select an authentication from the pull-down list including
Open system or Shared Key
,
Open System, Open System with 802.1x
,
Shared Key
,
WPA-RADIUS
,
WPA-PSK
,
WPA2-RADIUS and WPA2-
PSK.
Encryption
: Select the type of encryption from the pull-down list either
None
or
WEP
.
Apply Changes
: Click this button to save and apply the current settings.
Reset
: Click to clear and reset the current settings.
Advanced
Settings
Click the
Setup
button to enter the
Wireless Advanced Settings
page.
Fragment Threshold
: Fragmentation mechanism is used for improving the
efficiency when high traffic flows along in the wireless network. If your
802.11g Wireless LAN PC Card often transmit large files in wireless
network, you can enter new Fragment Threshold value to split the packet.
The value can be set from 256 to 2346. The default value is
2346
.
RTS Threshold
: RTS Threshold is a mechanism implemented to prevent the
“
Hidden Node
” problem. “Hidden Node” is a situation in which two
stations are within range of the same Access Point, but are not within range
of each other. Therefore, they are hidden nodes for each other. When a
station starts data transmission with the Access Point, it might not notice that
the other station is already using the wireless medium. When these two
stations send data at the same time, they might collide when arriving
simultaneously at the Access Point. The collision will most certainly result
in a loss of messages for both stations. Thus, the RTS Threshold mechanism
provides a solution to prevent data collisions. When you enable RTS
Threshold on a suspect “hidden station”, this station and its Access Point
will use a Request to Send (RTS). The station will send an RTS to the
Access Point, informing that it is going to transmit the data. Upon receipt,
the Access Point will respond with a CTS message to all station within its
range to notify all other stations to defer transmission. It will also confirm
the requestor station that the Access Point has reserved it for the time frame
